UBUNTU-CVE-2026-91403

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Source

https://ubuntu.com/security/CVE-2026-91403

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91403.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-91403

Upstream

CVE-2026-91403

Published

2026-10-23T00:00:00Z

Modified

2026-10-23T22:00:02Z

Severity

Ubuntu - medium

Summary

[none]

Details

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 8u511, 8u511-perf, 11.0.33, 17.0.21, 21.0.13, 25.0.5, 27.0.1; Oracle GraalVM for JDK: 17.0.21 and 21.0.13; Oracle GraalVM Enterprise Edition: 21.3.20. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data as well as unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

References

Affected packages

Ubuntu:16.04:LTS / openjdk-9

Package

Name: openjdk-9
Purl: pkg:deb/ubuntu/openjdk-9?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

Other

9~b88-1

9~b101-2ubuntu2

9~b102-1

9~b113-0ubuntu1

9~b114-0ubuntu1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "openjdk-9-demo",
            "binary_version":  "9~b114-0ubuntu1"
        },
        {
            "binary_name":  "openjdk-9-jdk",
            "binary_version":  "9~b114-0ubuntu1"
        },
        {
            "binary_name":  "openjdk-9-jdk-headless",
            "binary_version":  "9~b114-0ubuntu1"
        },
        {
            "binary_name":  "openjdk-9-jre",
            "binary_version":  "9~b114-0ubuntu1"
        },
        {
            "binary_name":  "openjdk-9-jre-headless",
            "binary_version":  "9~b114-0ubuntu1"
        },
        {
            "binary_name":  "openjdk-9-source",
            "binary_version":  "9~b114-0ubuntu1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91403.json"

Ubuntu:20.04:LTS / openjdk-13

Package

Name: openjdk-13
Purl: pkg:deb/ubuntu/openjdk-13?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

Other

13+33-1

13.*

13.0.1+9-2

13.0.2+8-1

13.0.2+8-2

13.0.3+3-1ubuntu2

13.0.4+8-1~20.04

13.0.7+5-0ubuntu1~20.04

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "openjdk-13-demo",
            "binary_version":  "13.0.7+5-0ubuntu1~20.04"
        },
        {
            "binary_name":  "openjdk-13-jdk",
            "binary_version":  "13.0.7+5-0ubuntu1~20.04"
        },
        {
            "binary_name":  "openjdk-13-jdk-headless",
            "binary_version":  "13.0.7+5-0ubuntu1~20.04"
        },
        {
            "binary_name":  "openjdk-13-jre",
            "binary_version":  "13.0.7+5-0ubuntu1~20.04"
        },
        {
            "binary_name":  "openjdk-13-jre-headless",
            "binary_version":  "13.0.7+5-0ubuntu1~20.04"
        },
        {
            "binary_name":  "openjdk-13-jre-zero",
            "binary_version":  "13.0.7+5-0ubuntu1~20.04"
        },
        {
            "binary_name":  "openjdk-13-source",
            "binary_version":  "13.0.7+5-0ubuntu1~20.04"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91403.json"

Ubuntu:20.04:LTS / openjdk-16

Package

Name: openjdk-16
Purl: pkg:deb/ubuntu/openjdk-16?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

16.*

16.0.1+9-1~20.04

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "openjdk-16-demo",
            "binary_version":  "16.0.1+9-1~20.04"
        },
        {
            "binary_name":  "openjdk-16-jdk",
            "binary_version":  "16.0.1+9-1~20.04"
        },
        {
            "binary_name":  "openjdk-16-jdk-headless",
            "binary_version":  "16.0.1+9-1~20.04"
        },
        {
            "binary_name":  "openjdk-16-jre",
            "binary_version":  "16.0.1+9-1~20.04"
        },
        {
            "binary_name":  "openjdk-16-jre-headless",
            "binary_version":  "16.0.1+9-1~20.04"
        },
        {
            "binary_name":  "openjdk-16-jre-zero",
            "binary_version":  "16.0.1+9-1~20.04"
        },
        {
            "binary_name":  "openjdk-16-source",
            "binary_version":  "16.0.1+9-1~20.04"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91403.json"

Ubuntu:22.04:LTS / openjdk-18

Package

Name: openjdk-18
Purl: pkg:deb/ubuntu/openjdk-18?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

Other

18~15ea-4

18~20ea-1

18~32ea-1

18~36ea-1

18.*

18.0.2+9-2~22.04

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "openjdk-18-demo",
            "binary_version":  "18.0.2+9-2~22.04"
        },
        {
            "binary_name":  "openjdk-18-jdk",
            "binary_version":  "18.0.2+9-2~22.04"
        },
        {
            "binary_name":  "openjdk-18-jdk-headless",
            "binary_version":  "18.0.2+9-2~22.04"
        },
        {
            "binary_name":  "openjdk-18-jre",
            "binary_version":  "18.0.2+9-2~22.04"
        },
        {
            "binary_name":  "openjdk-18-jre-headless",
            "binary_version":  "18.0.2+9-2~22.04"
        },
        {
            "binary_name":  "openjdk-18-jre-zero",
            "binary_version":  "18.0.2+9-2~22.04"
        },
        {
            "binary_name":  "openjdk-18-source",
            "binary_version":  "18.0.2+9-2~22.04"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91403.json"